International Strategic Mineral Issues

Earth-science and mineral resource agencies from several countries started the The International Strategic Minerals Issues in order to cooperatively gather info. about major sources of raw materials. This report summarizes inventory info. about major deposits of tungsten. Chapters: uses and supply aspects; types and geological ages of tungsten deposits. geographic distribution of tungsten deposits and districts; tungsten resources: resource distribution by economic class of country, order of deposit discovery, and resource distribution by deposit type; and tungsten production. Selected inventory info. on tungsten deposits and districts. 21 charts and tables.